Sujoy Ghosh, director of Kahaani is all set to venture into his upcoming film `Durga Rani Singh`. Kangana Ranaut is known for her experimentation and love for the unconventional roles. With the success of `Queen`, she is getting a lot of attention from the film fraternity. She has been lately doing several heroine centric movies . So Sujoy Ghosh`s next movie `Durga Rani Singh` is yet another challenging project for Kangana Ranaut. She will be playing a role that of a 35-year old mother to a 14-year old girl. She is known for her young bubbly and lively portrayals of roles till now. This would be her first film in which we would get to see her other side a more matured look. With the help of makeup and prosthetics she will transform herself into ageing herself to a 35 year old mother. But for Kangana this is the first film role which required her to don a more aging look. The role, she adds, requires a lot of research. She adds that she will have to work on her  body ­language to get the ­character right. She will also have to go through aging and use prosthetics. Moreover, she has to get the psychology of the mother of a paralytic daughter right.